package section_10.newIO;

import java.io.RandomAccessFile;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;

public class LargeMappedFiles {
	static int length = 0x8FFFFFF;

	@SuppressWarnings("resource")
	public static void main(String[] args) throws Exception {
		MappedByteBuffer out = new RandomAccessFile("test.txt", "rw").getChannel().map(FileChannel.MapMode.READ_WRITE,
				0, length);
		for (int i = 0; i < length; i++)
			out.put((byte) 'x');
		System.out.println("Finished writing");
		for (int i = length / 2; i < length / 2 + 6; i++) {
			System.out.println((char) out.get(i));
		}

	}
}
